Every now and then I have a nightmare; that I am back in class, writing a final exam which I haven't studied for and worrying that I will lose a year because I

Every now and then I have a nightmare; that I am back in class, writing a final exam which I haven't studied for and worrying that I will lose a year because I have failed. And then I wake up in anxiety and wonder what the hell did school do to me?? I had plenty of friends at school, never bullied and it was pretty much smooth sailing, so If I am having those dreams, I can't imagine what other people that were teased/bullied/extremely introvent during school are dreaming as adults. I am glad I am not the only one thought.